It says something for the political climate – and the power of social media – that Reuters on 2 December ran a story headlined: “Nigeria’s Buhari denies dying and being replaced by lookalike.” It quoted President Muhammadu Buhari telling diaspora Nigerians in Poland, where he was attending COP24 climate talks: “It’s real me, I assure you. I will soon celebrate my 76th birthday and I will still go strong.” He was referring to internet rumours that he had died and been replaced by a Sudanese-born body double.